Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-25 @ 12:33 AM
Ignite Modification Date:
2025-12-25 @ 12:33 AM
NCT ID:
NCT00741767
Brief Summary:
The purpose of this study is to determine if Advair Diskus improves sleep quality by reducing lung hyperinflation in COPD.
Detailed Description:
Chronic obstructive pulmonary disease (COPD) is a common and clinically important disease characterized by chronic, irreversible airflow obstruction. Poor sleep quality and insomnia are well described phenomena in patients with COPD. Several studies suggest sleep disturbance adversely affects quality of life and may worsen daytime pulmonary function in COPD patients. Improving sleep quality in patients with COPD, therefore, may not only improve health quality, but also attenuate the decline in daytime pulmonary function.
Previous studies investigating the effects of inhaled bronchodilators on sleep quality in COPD have shown conflicting results. These conflicting data prompted us to perform a retrospective study on patients with COPD and co-existing sleep apnea (OSA) investigating the effects of mechanical lung function impairment and lung hyperinflation on sleep. Our study found a significant correlation between increased lung hyperinflation and reduced sleep efficiency (a measure of sleep quality), and this relationship was preserved in a multivariable regression model.
We hypothesize that Advair Diskus improves sleep quality by reducing lung hyperinflation in COPD. To test this hypothesis, we propose a double-blinded, placebo controlled cross-over study of Advair Diskus in patients with COPD and lung hyperinflation.
It was mutually decided by the sponsor and principal investigator to terminate the study early due to study subject enrollment difficulties.
Study:
NCT00741767
Study Brief:
Protocol Section:
NCT00741767